Three-dimensional printing with natural food-derived fusing compounds

Abstract

A three-dimensional printing kit can include a build material and a fusing agent. The build material can include from about 80 wt % to 100 wt % polymeric particles having a D50 particle size from about 10 μm to about 150 μm. The fusing agent can include an aqueous liquid vehicle and natural food-derived fusing compound dissolved or dispersed therein. The natural food-derived fusing compound can have an absorption peak from about 340 nm to about 780 nm.

1 . (canceled) 
     
     
         2 . (canceled) 
     
     
         3 . The multi-fluid kit of claim  14 , wherein the natural food-derived fusing compound has an absorbance larger than 0.3. 
     
     
         4 . The multi-fluid kit of claim  14 , wherein the natural food-derived fusing compound is in the form of dispersed particles having a D50 particle size of from about 10 nm to about 5 μm. 
     
     
         5 . (canceled) 
     
     
         6 . The multi-fluid kit of claim  14 , wherein the natural food-derived fusing compound is selected from the group consisting of coffee grinds, curcumin, turmeric, and a combination thereof. 
     
     
         7 . The multi-fluid kit of claim  14 , wherein the fusing agent includes:
 from about 60 wt % to about 94 wt % of water;   from about 5 wt % to about 35 wt % of an organic co-solvent; and   from about 0.1 wt % to about 20 wt % of the natural food-derived fusing compound.   
     
     
         8 . The multi-fluid kit of claim  14 , wherein the aqueous liquid vehicle of the fusing agent includes water and an organic co-solvent, and wherein the organic co-solvent consists of food additive carrier solvents. 
     
     
         9 - 13 . (canceled) 
     
     
         14 . A multi-fluid kit, comprising:
 a fusing agent including an aqueous liquid vehicle and a natural food-derived fusing compound having an absorption peak from about 340 nm to about 780 nm; and   a second fluid agent selected from a coloring agent that includes a liquid vehicle and a colorant, or a detailing agent that includes a detailing compound that reduces a temperature of the build material onto which the detailing agent is applied.   
     
     
         15 . The multi-fluid kit of  claim 14 , wherein the natural food-derived fusing compound is selected from the group consisting of allspice, annatto, basil, berbere, black garlic, brown sugar, caraway seeds, cardamom, cayenne red pepper, celery seeds, chili powder, cinnamon, cloves, coffee grinds, coriander, cumin, curcumin, curry powder, ginger, ground mustard, ground peppercorns, ground sage, ground tea leaves, ground thyme, keratin, mace, marjoram, mustard seeds, nutmeg, oregano, paprika, red pepper, sage, star anise, tabil, turmeric, and a combination thereof. 
     
     
         16 . The multi-fluid kit of  claim 14 , wherein the fusing agent further includes a surfactant. 
     
     
         17 . The multi-fluid kit of  claim 14 , wherein the natural food-derived fusing compound has a D50 particle size of from about 10 nm to about 800 nm. 
     
     
         18 . The multi-fluid kit of  claim 14 , wherein the natural food-derived fusing compound are milled particles. 
     
     
         19 . The multi-fluid kit of  claim 14 , wherein the food-derived fusing compound is present in an amount ranging from about 0.1 wt % to about 20 wt %, based on a total weight of the fusing agent. 
     
     
         20 . The multi-fluid kit of  claim 14 , wherein the food-derived fusing compound is present in an amount ranging from about 0.2 wt % to about 5 wt %, based on a total weight of the fusing agent. 
     
     
         21 . The multi-fluid kit of  claim 14 , wherein the fusing agent further includes an organic co-solvent selected from the group consisting of a polyol, an oligoglycol, and a lactam. 
     
     
         22 . The multi-fluid kit of  claim 14 , wherein the fusing agent further includes propylene glycol as an organic co-solvent.